GREENMATE

Drain pipes, not of metal; Ducts, not of metal, for ventilating and air-conditioning installations; Gutter pipes, not of metal; Non-metal floors comprised primarily of plastic for outdoor use; Non-metal water pipes; Non-metallic reinforcements for concrete and wood building construction, namely, plates, rods and bars; Refractory construction materials, not of metal; Water-pipe valves, not of metal or plastic; Road signs, non-luminous and non-mechanical, not of metal